{"id":171335,"date":"2024-11-07T01:53:17","date_gmt":"2024-11-06T17:53:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/171335\/"},"modified":"2024-11-07T01:53:17","modified_gmt":"2024-11-06T17:53:17","slug":"%e6%b7%ba%e8%ab%87oracle-shared-pool","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/171335\/","title":{"rendered":"\u6dfa\u8ac7Oracle Shared Pool"},"content":{"rendered":"<h1 id=\"%e6%b7%ba%e8%ab%87oracle-shared-pool-nAnBtBLCmm\">\u6dfa\u8ac7Oracle Shared Pool<\/h1>\n<p>\u5728Oracle\u6578\u64da\u5eab\u4e2d\uff0cShared Pool\u662f\u5167\u5b58\u7d50\u69cb\u7684\u4e00\u90e8\u5206\uff0c\u4e3b\u8981\u7528\u65bc\u5b58\u5132\u5171\u4eab\u7684SQL\u8a9e\u53e5\u3001PL\/SQL\u7a0b\u5e8f\u3001\u6578\u64da\u5b57\u5178\u4fe1\u606f\u4ee5\u53ca\u5176\u4ed6\u91cd\u8981\u7684\u6578\u64da\u5eab\u7d50\u69cb\u3002\u9019\u4e00\u90e8\u5206\u7684\u5167\u5b58\u5c0d\u65bc\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\u81f3\u95dc\u91cd\u8981\uff0c\u56e0\u70ba\u5b83\u80fd\u5920\u6e1b\u5c11\u5c0d\u78c1\u789f\u7684\u8a2a\u554f\uff0c\u5f9e\u800c\u52a0\u5feb\u67e5\u8a62\u7684\u57f7\u884c\u901f\u5ea6\u3002<\/p>\n<h2 id=\"shared-pool%e7%9a%84%e7%b5%84%e6%88%90-nAnBtBLCmm\">Shared Pool\u7684\u7d44\u6210<\/h2>\n<p>Shared Pool\u4e3b\u8981\u7531\u4ee5\u4e0b\u5e7e\u500b\u90e8\u5206\u7d44\u6210\uff1a<\/p>\n<ul>\n<li><strong>Library Cache<\/strong>: \u7528\u65bc\u5b58\u5132\u5df2\u89e3\u6790\u7684SQL\u8a9e\u53e5\u548cPL\/SQL\u7a0b\u5e8f\u3002\u7576\u7528\u6236\u57f7\u884c\u4e00\u689dSQL\u8a9e\u53e5\u6642\uff0cOracle\u6703\u9996\u5148\u6aa2\u67e5Library Cache\u4e2d\u662f\u5426\u5df2\u7d93\u5b58\u5728\u8a72\u8a9e\u53e5\u7684\u89e3\u6790\u7d50\u679c\u3002\u5982\u679c\u5b58\u5728\uff0c\u5247\u76f4\u63a5\u4f7f\u7528\uff0c\u9019\u6a23\u53ef\u4ee5\u7bc0\u7701\u89e3\u6790\u7684\u6642\u9593\u3002<\/li>\n<li><strong>Data Dictionary Cache<\/strong>: \u5b58\u5132\u6578\u64da\u5b57\u5178\u4fe1\u606f\uff0c\u5305\u62ec\u8868\u7d50\u69cb\u3001\u7d22\u5f15\u4fe1\u606f\u7b49\u3002\u9019\u90e8\u5206\u7684\u6578\u64da\u5c0d\u65bc\u67e5\u8a62\u7684\u57f7\u884c\u8a08\u5283\u751f\u6210\u81f3\u95dc\u91cd\u8981\u3002<\/li>\n<li><strong>Shared SQL Area<\/strong>: \u7528\u65bc\u5b58\u5132\u5171\u4eab\u7684SQL\u8a9e\u53e5\uff0c\u9019\u4e9b\u8a9e\u53e5\u53ef\u4ee5\u88ab\u591a\u500b\u7528\u6236\u5171\u4eab\uff0c\u5f9e\u800c\u6e1b\u5c11\u5167\u5b58\u7684\u4f7f\u7528\u3002<\/li>\n<\/ul>\n<h2 id=\"shared-pool%e7%9a%84%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86-nAnBtBLCmm\">Shared Pool\u7684\u5de5\u4f5c\u539f\u7406<\/h2>\n<p>\u7576\u7528\u6236\u63d0\u4ea4\u4e00\u689dSQL\u8a9e\u53e5\u6642\uff0cOracle\u9996\u5148\u6703\u6aa2\u67e5Shared Pool\u4e2d\u7684Library Cache\u3002\u5982\u679c\u8a72\u8a9e\u53e5\u5df2\u7d93\u5b58\u5728\u65bcCache\u4e2d\uff0cOracle\u5c07\u76f4\u63a5\u4f7f\u7528\u8a72\u8a9e\u53e5\u7684\u57f7\u884c\u8a08\u5283\uff0c\u9019\u6a23\u53ef\u4ee5\u5927\u5e45\u5ea6\u63d0\u9ad8\u67e5\u8a62\u7684\u6548\u7387\u3002\u5982\u679c\u8a72\u8a9e\u53e5\u4e0d\u5728Cache\u4e2d\uff0cOracle\u5c07\u9032\u884c\u89e3\u6790\uff0c\u751f\u6210\u57f7\u884c\u8a08\u5283\u4e26\u5c07\u5176\u5b58\u5132\u5230Library Cache\u4e2d\uff0c\u4ee5\u4fbf\u672a\u4f86\u7684\u67e5\u8a62\u4f7f\u7528\u3002<\/p>\n<p>\u6b64\u5916\uff0cShared Pool\u9084\u6703\u5b9a\u671f\u9032\u884c\u6e05\u7406\uff0c\u4ee5\u91cb\u653e\u4e0d\u518d\u4f7f\u7528\u7684\u5167\u5b58\u3002\u9019\u4e00\u904e\u7a0b\u7a31\u70ba\u201cLRU\uff08Least Recently Used\uff09\u7b97\u6cd5\u201d\uff0c\u5373\u6700\u5c11\u4f7f\u7528\u7b97\u6cd5\u3002\u7576Shared Pool\u7684\u5167\u5b58\u9054\u5230\u4e0a\u9650\u6642\uff0cOracle\u6703\u81ea\u52d5\u6e05\u9664\u6700\u5c11\u4f7f\u7528\u7684\u9805\u76ee\uff0c\u4ee5\u9a30\u51fa\u7a7a\u9593\u7d66\u65b0\u7684\u9805\u76ee\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%84%aa%e5%8c%96shared-pool-nAnBtBLCmm\">\u5982\u4f55\u512a\u5316Shared Pool<\/h2>\n<p>\u70ba\u4e86\u63d0\u9ad8Shared Pool\u7684\u6027\u80fd\uff0c\u53ef\u4ee5\u8003\u616e\u4ee5\u4e0b\u5e7e\u500b\u512a\u5316\u7b56\u7565\uff1a<\/p>\n<ul>\n<li><strong>\u8abf\u6574Shared Pool\u5927\u5c0f<\/strong>: \u6839\u64da\u5be6\u969b\u7684\u5de5\u4f5c\u8ca0\u8f09\uff0c\u9069\u7576\u8abf\u6574Shared Pool\u7684\u5927\u5c0f\u3002\u904e\u5c0f\u7684Shared Pool\u53ef\u80fd\u5c0e\u81f4\u983b\u7e41\u7684\u6e05\u7406\uff0c\u5f71\u97ff\u6027\u80fd\uff1b\u800c\u904e\u5927\u7684Shared Pool\u5247\u53ef\u80fd\u6d6a\u8cbb\u5167\u5b58\u8cc7\u6e90\u3002<\/li>\n<li><strong>\u4f7f\u7528Bind Variables<\/strong>: \u4f7f\u7528\u7d81\u5b9a\u8b8a\u91cf\u53ef\u4ee5\u6e1b\u5c11SQL\u8a9e\u53e5\u7684\u89e3\u6790\u6b21\u6578\uff0c\u5f9e\u800c\u63d0\u9ad8Library Cache\u7684\u547d\u4e2d\u7387\u3002\u9019\u6a23\u53ef\u4ee5\u6709\u6548\u6e1b\u5c11\u5167\u5b58\u7684\u4f7f\u7528\u3002<\/li>\n<li><strong>\u5b9a\u671f\u76e3\u63a7\u548c\u5206\u6790<\/strong>: \u4f7f\u7528Oracle\u63d0\u4f9b\u7684\u5de5\u5177\uff08\u5982AWR\u5831\u544a\uff09\u5b9a\u671f\u76e3\u63a7Shared Pool\u7684\u4f7f\u7528\u60c5\u6cc1\uff0c\u5206\u6790Cache\u547d\u4e2d\u7387\uff0c\u53ca\u6642\u8abf\u6574\u914d\u7f6e\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-nAnBtBLCmm\">\u7d50\u8ad6<\/h2>\n<p>Oracle Shared Pool\u5728\u6578\u64da\u5eab\u6027\u80fd\u4e2d\u626e\u6f14\u8457\u91cd\u8981\u89d2\u8272\uff0c\u901a\u904e\u5408\u7406\u7684\u914d\u7f6e\u548c\u512a\u5316\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u67e5\u8a62\u6548\u7387\u3002\u4e86\u89e3Shared Pool\u7684\u5de5\u4f5c\u539f\u7406\u53ca\u5176\u7d44\u6210\u90e8\u5206\uff0c\u5c0d\u65bc\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u4f86\u8aaa\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u82e5\u60a8\u5c0d\u65bcVPS\u6216\u5176\u4ed6\u4f3a\u670d\u5668\u89e3\u6c7a\u65b9\u6848\u611f\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9 <a href=\"https:\/\/server.hk\">Server.HK<\/a> \u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Oracle Shared Pool\u7684\u529f\u80fd\u8207\u512a\u5316\u7b56\u7565\uff0c\u4e86\u89e3\u5176\u5728\u6578\u64da\u5eab\u6027\u80fd\u4e2d\u7684\u91cd\u8981\u6027\u8207\u7ba1\u7406\u6280\u5de7\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-171335","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/171335","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=171335"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/171335\/revisions"}],"predecessor-version":[{"id":171336,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/171335\/revisions\/171336"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=171335"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=171335"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=171335"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}